width % 16 != 0 workaround by (Nicolas Plourde: nicolas plourde, gmail com>)

cleanup by me
  indention fixed
  second one must be yv12touyvy instead of yv12toyuy2
  replace slow modulo by bitwise and
  move %16!=0 code before the comment saying the code cant handle %16!=0

Originally committed as revision 15825 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc

postproc/swscale_altivec_template.c

@@ -400,6 +400,11 @@ static inline int yv12toyuy2_unscaled_altivec(SwsContext *c, uint8_t* src[], int
   const int vertLumPerChroma = 2;  
   register unsigned int y;
 
+  if(width&15){
+    yv12toyuy2( ysrc, usrc, vsrc, dst,c->srcW,srcSliceH, lumStride, chromStride, dstStride);
+    return srcSliceH;
+  }
+
   /* this code assume:
 
   1) dst is 16 bytes-aligned
@@ -474,6 +479,11 @@ static inline int yv12touyvy_unscaled_altivec(SwsContext *c, uint8_t* src[], int
   const vector unsigned char yperm = vec_lvsl(0, ysrc);
   register unsigned int y;
 
+  if(width&15){
+    yv12touyvy( ysrc, usrc, vsrc, dst,c->srcW,srcSliceH, lumStride, chromStride, dstStride);
+    return srcSliceH;
+  }
+
   /* this code assume:
 
   1) dst is 16 bytes-aligned